#include<iostream> #include<cstdio> #include<cstring> #include<cmath> using namespace std; int main(){ int s,d[101]={},a[101]={}; cin>>s; for(int i=1;i<=s;i++){ cin>>a[i]; cin>>a[i+1]; cin>>d[i]; cin>>d[i+1]; } int S; cin>>S; for(int i=1;i<=s;i++){ if(S=i){ cout<<i<<endl; break; } } return 0; }